ANTENNA HOPPING FOR SPECIFIC ABSORPTION RATE (SAR) REDUCTION

1 . A mobile communication device comprising:

an antenna;

a plurality of further antennas; and

a processor configured to:

retrieve a predefined power threshold;

determine that the antenna is transmitting a signal at a transmission power;

retrieve a predefined transmission time interval;

determine that the transmission power exceeds the predefined power threshold;

determine a duration of transmitting the signal;

compare the duration with the predefined transmission time interval; and

switch transmitting the signal from the antenna to a further antenna of the plurality of further antennas, if the duration reaches the predefined transmission time interval.

2 . The mobile communication device of claim 1 , further configured to retrieve the predefined power threshold from a lookup table.

3 . The mobile communication device of claim 1 , further configured to retrieve the predefined transmission time interval from a lookup table.

4 . The mobile communication device of claim 3 , wherein the predefined transmission time interval is based upon an uplink radio frequency.

5 . The mobile communication device of claim 3 , wherein the predefined transmission time interval is based upon the transmission power.

6 . The mobile communication device of claim 1 , further configured to determine the further antenna based on a switching algorithm.

7 . The mobile communication device of claim 1 , further configured to determine the further antenna based on a distance between the antenna and the further antenna.

8 . The mobile communication device of claim 1 , further configured to determine the further antenna based on a random selection from the plurality of further antennas.

9 . A method comprising:

retrieving a predefined power threshold;

determining a transmission power of a transmitting antenna, wherein the transmitting antenna is actively transmitting a signal;

retrieving a predefined transmission time interval;

determining that the transmission power exceeds the predefined power threshold;

determining a duration of transmitting the signal;

comparing the duration with the predefined transmission time interval; and

switching transmitting the signal from the transmitting antenna to a further antenna when the duration equals the predefined transmission time interval.

10 . The method of claim 9 , further comprising retrieving the predefined power threshold from a lookup table.

11 . The method of claim 9 , further comprising retrieving the predefined transmission time interval from a lookup table.

12 . The method of claim 11 , wherein the transmission time interval is based upon an uplink radio frequency.

13 . The method of claim 11 , wherein the transmission time interval is based upon the transmission power.

14 . The method of claim 9 , further comprising determining the further antenna based on a switching algorithm.

15 . The method of claim 9 , further comprising determining the further antenna based on a distance between the antenna and the further antenna.

16 . The method of claim 9 , further comprising determining the further antenna based on a random selection from the plurality of further antennas.